[INFO] cloning repository https://github.com/uzushino/crf-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/uzushino/crf-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzushino%2Fcrf-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzushino%2Fcrf-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 43a43612c947b027b696f9b646481b4ace1547e6
[INFO] checking uzushino/crf-rs against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fuzushino%2Fcrf-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/uzushino/crf-rs on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/uzushino/crf-rs
[INFO] finished tweaking git repo https://github.com/uzushino/crf-rs
[INFO] tweaked toml for git repo https://github.com/uzushino/crf-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/uzushino/crf-rs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.2.3
[INFO] [stderr]   Downloaded torch-sys v0.1.3
[INFO] [stderr]   Downloaded tch v0.1.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 720bf5dc79d68126edf5f8e716fb1a411d860f39c06dc1bf79e831b12e926e06
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "720bf5dc79d68126edf5f8e716fb1a411d860f39c06dc1bf79e831b12e926e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "720bf5dc79d68126edf5f8e716fb1a411d860f39c06dc1bf79e831b12e926e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "720bf5dc79d68126edf5f8e716fb1a411d860f39c06dc1bf79e831b12e926e06", kill_on_drop: false }`
[INFO] [stdout] 720bf5dc79d68126edf5f8e716fb1a411d860f39c06dc1bf79e831b12e926e06
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ab4bd99bf950799f222a738de854581f56f6d4322683d18b2186810780c85edc
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ab4bd99bf950799f222a738de854581f56f6d4322683d18b2186810780c85edc", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling bzip2-sys v0.1.7
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling openssl-sys v0.9.53
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling curl-sys v0.4.24
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling backtrace v0.3.40
[INFO] [stderr]     Checking bzip2 v0.3.3
[INFO] [stderr]     Checking zip v0.5.3
[INFO] [stderr]     Checking ndarray v0.13.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling failure_derive v0.1.6
[INFO] [stderr]    Compiling failure v0.1.6
[INFO] [stderr]    Compiling curl v0.4.25
[INFO] [stderr]    Compiling torch-sys v0.1.3
[INFO] [stderr] error: failed to run custom build command for `torch-sys v0.1.3`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/torch-sys-a77f202a4a34d89e/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Error { description: "Couldn't resolve host name", code: 6, extra: None }
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0: failure::backtrace::internal::InternalBacktrace::new
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.6/src/backtrace/internal.rs:46
[INFO] [stderr]      1: failure::backtrace::Backtrace::new
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.6/src/backtrace/mod.rs:121
[INFO] [stderr]      2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.6/src/error/error_impl.rs:19
[INFO] [stderr]      3: <failure::error::Error as core::convert::From<F>>::from
[INFO] [stderr]                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.6/src/error/mod.rs:36
[INFO] [stderr]      4: <core::result::Result<T,F> as core::ops::try_trait::FromResidual<core::result::Result<core::convert::Infallible,E>>>::from_residual
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/result.rs:1653
[INFO] [stderr]      5: build_script_build::download
[INFO] [stderr]                at build.rs:30
[INFO] [stderr]      6: build_script_build::prepare_libtorch_dir
[INFO] [stderr]                at build.rs:117
[INFO] [stderr]      7: build_script_build::main
[INFO] [stderr]                at build.rs:174
[INFO] [stderr]      8: core::ops::function::FnOnce::call_once
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:227
[INFO] [stderr]      9: std::sys_common::backtrace::__rust_begin_short_backtrace
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:125
[INFO] [stderr]     10: std::rt::lang_start::{{closure}}
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:63
[INFO] [stderr]     11: core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:259
[INFO] [stderr]         std::panicking::try::do_call
[INFO] [stderr]                at library/std/src/panicking.rs:401
[INFO] [stderr]         std::panicking::try
[INFO] [stderr]                at library/std/src/panicking.rs:365
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at library/std/src/panic.rs:434
[INFO] [stderr]         std::rt::lang_start_internal::{{closure}}
[INFO] [stderr]                at library/std/src/rt.rs:45
[INFO] [stderr]         std::panicking::try::do_call
[INFO] [stderr]                at library/std/src/panicking.rs:401
[INFO] [stderr]         std::panicking::try
[INFO] [stderr]                at library/std/src/panicking.rs:365
[INFO] [stderr]         std::panic::catch_unwind
[INFO] [stderr]                at library/std/src/panic.rs:434
[INFO] [stderr]         std::rt::lang_start_internal
[INFO] [stderr]                at library/std/src/rt.rs:45
[INFO] [stderr]     12: std::rt::lang_start
[INFO] [stderr]                at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:62
[INFO] [stderr]     13: main
[INFO] [stderr]     14: __libc_start_main
[INFO] [stderr]     15: _start
[INFO] [stderr]   ', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:117:48
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x563ea15690e0 - std::backtrace_rs::backtrace::libunwind::trace::h4e80f45db05e9df0
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x563ea15690e0 - std::backtrace_rs::backtrace::trace_unsynchronized::h9db62a3d3587f6c3
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x563ea15690e0 - std::sys_common::backtrace::_print_fmt::h2fafbe52c9090591
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x563ea15690e0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7d41ae04358c516d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x563ea158a54c - core::fmt::write::h968e6400cbc51d6a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/fmt/mod.rs:1115:17
[INFO] [stderr]      5:     0x563ea15656a5 - std::io::Write::write_fmt::h2eaa97c6f8c9e829
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/io/mod.rs:1642:15
[INFO] [stderr]      6:     0x563ea156b70b - std::sys_common::backtrace::_print::h601a6bc581f240d5
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x563ea156b70b - std::sys_common::backtrace::print::h8b96e15ba64b8e64
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x563ea156b70b - std::panicking::default_hook::{{closure}}::h94fa9d2f08c20620
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x563ea156b1e1 - std::panicking::default_hook::h6d463f5a2e9d9986
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x563ea156bdd4 - std::panicking::rust_panic_with_hook::h1e953652a338573e
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x563ea156b8b7 - std::panicking::begin_panic_handler::{{closure}}::h78bf2fec525c238a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:519:13
[INFO] [stderr]     12:     0x563ea15695dc - std::sys_common::backtrace::__rust_end_short_backtrace::h651eb6282e4ea6b2
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x563ea156b819 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:515:5
[INFO] [stderr]     14:     0x563ea13f5781 - core::panicking::panic_fmt::hdfd0360cedf2d908
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/panicking.rs:92:14
[INFO] [stderr]     15:     0x563ea13f5813 - core::result::unwrap_failed::hc9085c7b2fddd31a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/result.rs:1355:5
[INFO] [stderr]     16:     0x563ea1408ce9 - core::result::Result<T,E>::unwrap::h47c2423efbb6630b
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/result.rs:1037:23
[INFO] [stderr]     17:     0x563ea1402072 - build_script_build::prepare_libtorch_dir::hfbb40e04fe8eb319
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:117:13
[INFO] [stderr]     18:     0x563ea1403051 - build_script_build::main::hbe38ae5f9e2d962a
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/torch-sys-0.1.3/build.rs:174:20
[INFO] [stderr]     19:     0x563ea13fa97b - core::ops::function::FnOnce::call_once::hadcf5ae51d455109
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     20:     0x563ea13fea8e - std::sys_common::backtrace::__rust_begin_short_backtrace::h01a3635817daedf5
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     21:     0x563ea13fd411 - std::rt::lang_start::{{closure}}::hcc2e3c3344c496c4
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:63:18
[INFO] [stderr]     22:     0x563ea156c3da - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hccffb0872f46e99d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     23:     0x563ea156c3da - std::panicking::try::do_call::h814e0410256bb9f2
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:401:40
[INFO] [stderr]     24:     0x563ea156c3da - std::panicking::try::h97cbec2057cc2c0d
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:365:19
[INFO] [stderr]     25:     0x563ea156c3da - std::panic::catch_unwind::h964f35f6fa41d1d7
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panic.rs:434:14
[INFO] [stderr]     26:     0x563ea156c3da - std::rt::lang_start_internal::{{closure}}::hb97931cf27086d8b
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:45:48
[INFO] [stderr]     27:     0x563ea156c3da - std::panicking::try::do_call::hf0d61be342e8297a
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:401:40
[INFO] [stderr]     28:     0x563ea156c3da - std::panicking::try::h6b40eeb22db57b23
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panicking.rs:365:19
[INFO] [stderr]     29:     0x563ea156c3da - std::panic::catch_unwind::h425af95fffdb0cf5
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/panic.rs:434:14
[INFO] [stderr]     30:     0x563ea156c3da - std::rt::lang_start_internal::h21e355575f2fedc7
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:45:20
[INFO] [stderr]     31:     0x563ea13fd3e0 - std::rt::lang_start::h649a47e619df19ed
[INFO] [stderr]                                  at /rustc/3d9fdbff4f377de96b3a51174e7a64086bee9a5c/library/std/src/rt.rs:62:5
[INFO] [stderr]     32:     0x563ea14034ac - main
[INFO] [stderr]     33:     0x7f4cccc1a0b3 - __libc_start_main
[INFO] [stderr]     34:     0x563ea13f5efe - _start
[INFO] [stderr]     35:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "ab4bd99bf950799f222a738de854581f56f6d4322683d18b2186810780c85edc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab4bd99bf950799f222a738de854581f56f6d4322683d18b2186810780c85edc", kill_on_drop: false }`
[INFO] [stdout] ab4bd99bf950799f222a738de854581f56f6d4322683d18b2186810780c85edc